Section 18.2: Proving Figures are Congruent Using Rigid Motions

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Presentation transcript:

Section 18.2: Proving Figures are Congruent Using Rigid Motions

Objective(s): By following instructions, students will be able to: Determine whether two figures are congruent.

explain 1A Use the definition of congruence to decide whether the two figures are congruent. Explain your answer.

explain 1B Use the definition of congruence to decide whether the two figures are congruent. Explain your answer.

Your-Turn #1 Use the definition of congruence to decide whether the two figures are congruent. Explain your answer.

explain 2A The figures shown are congruent. Find a sequence of rigid motions that maps one figure to the other. Give coordinate notation for the transformations you use.

explain 2B The figures shown are congruent. Find a sequence of rigid motions that maps one figure to the other. Give coordinate notation for the transformations you use.

Your-Turn #2 The figures shown are congruent. Find a sequence of rigid motions that maps one figure to the other. Give coordinate notation for the transformations you use.

explain 3A Determine which angles or segments are congruent. Describe transformations that can be used to verify congruence.

explain 3B Determine which angles or segments are congruent. Describe transformations that can be used to verify congruence.

Your-Turn #3 The figures shown are congruent. Find a sequence of rigid motions that maps one figure to the other. Give coordinate notation for the transformations you use.

Revisit Objective(s): Did we... Determine whether two figures are congruent?

HW: Sec 18.2 pg 725 #s 1-12, 15, 17, 19, 22